Hi there,
I failed twice before until I passed the third time with excellent results.
I worked with several projects as PM and thought that was enough. I read the PMBOK guide and took some prepcast videos (but not all), did some exam prep (but not completing). I did take the exam in 2018 December and as soon as I failed, I rescheduled my 2nd exam in less than 3 months, of course, I failed again.
On my second failure, I paused a bit, reviewed my scores where I have poor performance (Executing and Closing are Below Target). I focused 2-3 hours a day while continuing to study at least 1 hr a day for Initiating, Planning, and Monitoring. I got more interested while getting embedded in the studies that I was even listening to Daniel Ryan and Margaret Meloni's PMP lectures. I also read Rita's prepbooks as a supplement of Prepcast.
I took the exam after 6 months and pleased that the preparation, planning, and strategies paid off - I got 2 AT, 2 T, and closing was almost T (BT). I think as Project Managers, we need to really dedicate planning, strategizing, and preparing for projects, and this is what I missed during my first two attempts.
Hope my experience helps.